Indicator attachment for bells.



' BATENTED AUG. 18, 1903. 0- EL M NBQ:Ei-, INDICATOR ATTACHMENT PUB,BELLS.

APPLIGATIQN Mun J'AN... 6, 1906.

no MODEL.

l-IGJII WETNESS S: INVEN'I'IIR:

M m W BY 1 '1 1 ATTORNEY UNITED STATES Patented August 18, 1903.

PATENT OFFICE.

CHARLES E. MONROE, OF NEW YORK, N. Y., ASSIGNOR TO ERICSSON TELEPHONECOMPANY, OF NEIV YORK, N. Y., A CORPORATION OF \VEST VIRGINIA.

INDICATOR ATTACHMENT FOR BELLS.

SPECIFICATION forming part of Letters Patent No. 736,616, dated August18, 1903.

Application filed January 5, 1903.

To (tZZ whom it may concern.-

Be it known that 1, CHARLES E. MONROE, a citizen of the United States,residing at New York, in the county of New York, State of New York, haveinvented certain new and useful Improvements in Indicator Attachmentsfor Bells, of which the following is a specification, reference beinghad, therein to the accompanying drawings.

This invention relates to an indicator attachment for bells, andparticularly to a device adapted to be suspended upon the bellhammer.

The invention has for an object to provide an indicator-plate having alongitudinal slot within the body thereof formed at one end with meansto engage a supporting member and hold the indicator in an elevatedposition, while a movement of the supporting member releases it from-theholding means and permits the indicator to fall the length of the slottherein.

Other and further objects and advantages of the invention will behereinafter set forth, and the novel features thereof defined by theappended claims.

In the drawings, Figure 1 is an elevation showing the indicatorsuspended upon a bellhammer; Fig. 2, a similar view showing theindicator released and in its dropped position; Fig. 3, a centralvertical section; Fig, 4, a detail plan of the indicator, and Fig. 5 asimilar view of a modified form of the invention.

Like letters of reference refer to like parts in the several figures ofthe drawings.

This invention is adapted for application to any form of bells, andparticularly where a number of call-bells are located in an apartment,so that an attendant can readily see which bell has been rung. For thepurpose of illustration the indicator is herein shown as applied to atelephone magnetoelectro bell, in which the hammer A is provided with ashank-or arm A, extending to the usual actuating-magnets, while thebells A are disposed upon opposite sides thereof and mounted in anydesired mannerefor instance, by means of brackets A pivoted at theirupper ends A and adj ustably secured Serial No. 137,873- (No model.)

at their lower ends A so that their relation to the hammer A, which isdisposed between the same, may be varied.

The indicator is composed of a plate B, formed of paper, metal, or anyother desired material and adapted to receive upon its enlarged lowerportion any announcement to indicate the point connected with the bellthen rung or, if preferred, an advertisement. The upper portion of thisplate is provided with an extended arm B, having longitudinally thereofa slot B within the body of the arm, which slot at its lower end isformed with an enlargement B adapted to pass-over the head of thebell-hammer and having at opposite sides shoulders B adapted to restupon the arm A of the bell-hammer,as shown in Fig. 1, and thus supportthe indicator in an elevated position. When the hammer is vibrated, thearm A thereof moves from beneath the shoulder B and enters the slot Bthus permitting the indicator to fall by gravity into the position shownin Fig. 2, while the head of the hammer prevents any disengagement ofthe indicator-plate therefrom when suspended thereon. In resetting theindicator the plate is simply moved upward and the hammer-arm engagesone of the inclined faces B beneath the slot 13*, thus bringing the armbeneath one of the shoulders when the parts are in position forautomatic operation when the bell is next rung.

In Fig. 5 a modified application of the invention is shown,in which theplate 0 is provided with an arm 0 at its upper portion having therein alongitudinal slot 0 the lower portion of which is tapering or inclinedat so as to engage and hold the indicator upon the arm of thebell-hammer by frictional contact therewith and release the indicator bythe vibratory movement of the bell.

It will be obvious that changes may be made in the details ofconfiguration and construction of the indicator-plate without departingfrom the spirit of the invention as defined by the appended claims.

Having described my invention and set forth its merits, what I claim,and desire to secure by Letters Patent, is-

1. In an indicator attachment, a plate having a longitudinally-extendingslot therein with a supporting-body at its upper end, and means at thelower portion of said slot for temporarily supporting the plate upon amovable member; substantially as specified.

2. In an indicator attachment, a plate having an extended arm at itsupper portion provided with a longitudinal slot having a supporting-bodyat its upper end and enlarged recess at the lower end thereof, and ashoulder in said recess adapted to engage a support and retain theindicator in one position; substantially as specified.

3. In an indicator attachment, a plate having an extended arm at itsupper portion pro vided with a longitudinal slot and enlarged recess atthe lower end thereof, a shoulder in said recess adapted to engage asupport CHAS. E. MONROE.

Witnesses:

H. E. WILKs, LANDON P. SMITH.

